Add glossary to linting

[ErikSchierboom]

CC @ee7

[ee7]

kebab_case: strings containing only characters in the range [a-z0-9-]

This permits strings like -integers and numeric--types.

Should the definition be a bit stricter? Maybe something like this?
^[a-z0-9]+(-[a-z0-9]+)*$

Note that the below doesn't match 05ab1e, which should be a valid slug.
^([a-z][a-z0-9]*)(-[a-z0-9]+)*$